/**
 * 获取 yyyyMMdd
 * @returns {void | string | *}
 */
let getDate8 = () => {
    return new Date().Format('yyyyMMdd');
};

/**
 * 获取 yyyy-MM-dd
 * @returns {void | string | *}
 */
let getDate10 = () => {
    return new Date().Format('yyyy-MM-dd');
};

/**
 * 获取 yyyy-MM-dd
 * @returns {void | string | *}
 */
let getDate19 = () => {
    return new Date().Format('yyyy-MM-dd hh:mm:ss');
};

/**
 * 获取 hh:mm:ss
 * @returns 
 */
let getTime8 = () => {
    return new Date().Format('hh:mm:ss');
};

/**
 * 获取 
 * @returns 
 */
let increaseTime = (time = new Date(), day) => {
    let newTime = new Date();
    let date = newTime.getTime() + day * 24 * 60 * 60 * 1000;
    date=new Date(date)
    return date.Format('yyyy-MM-dd');
};

Date.prototype.Format = function (fmt) {
    //author: meizz
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "h+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "S": this.getMilliseconds() //毫秒
    };
    if (/(y+)/.test(fmt))
        fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(fmt))
            fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}

module.exports = { getDate8, getDate10, getDate19, getTime8, increaseTime };